I just received an ODROID C2 with the Hifi Shield. It booted right up after I burned the latest image onto a microSD card. I've able to access it when it's attached to the router via wired Ethernet. So, I've set it up with a Wifi dongle and it seemed to work for a while, then it lost the Wifi settings. Then it lost the NAS mount settings. It seems to lose the settings for the HiFi shield as well.
My ODROID C1+ seems to have no such problems.